KR101681801B1 - Boom-rotating device and high place working system and high place operation car using the same - Google Patents

Abstract

The present invention makes it possible to rotate the extension boom bar extending from the main boom bar vertically 180 ° above and below the joining area with the main boom bar so as to enlarge the work radius of the high boom work and enable efficient and stable high- The present invention relates to a boom rotating device capable of reducing a loading space by allowing an extension boom to closely contact with an inner side during operation, and more particularly, to a boom rotating device which is directly connected through a first rotary shaft and an extension boom; A refraction link which is connected to the tip end of the foundation boom bar via a second rotation shaft and is refracted about a central axis; And a linear link in which one side is connected to the refraction link via a hinge axis and the other side is connected to the extension boom band via a third rotation axis; Wherein the undulating cylinder mounted on the foundation boom block transmits a linear motion to the central axis of the refraction link and the refraction link rotates in accordance with the transmission of the linear motion, And is axially rotated about a rotation axis.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a boom rotator having an extended working radius, a high-altitude operation system and a high-

More particularly, the present invention relates to an elevating boom bar extending from a main boom bar to an elevation boom bar having an upper and a lower elevation angle of 180 ° or more around a joining area with the main boom bar. In particular, the present invention relates to a boom bar rotation device having an extended working radius, The boom can be rotated so as to enlarge the working radius of the high-altitude work, to enable an efficient and stable high-altitude work even in the dead-end section, and to extend the work boom in the non-work so that the load space can be reduced. And a high-altitude work system and a high-altitude work vehicle to which the present invention is applied.

Generally, a high-altitude operation system mounted on a vehicle is a device for elevating and lowering a bucket on which a worker rides.

In the conventional high-lift operation system, a plurality of boom rods are slidably extended or retractably coupled to each other, a boom is provided at the boom rope of the best stage, and a cylinder for maintaining the horizontal position of the bucket is provided. It can be used not only for maintenance and streetlight work but also for professional work areas such as live wire work with high voltage distribution line, electric power line work, hydraulic tool work, pole transformer work.

However, in the conventional high-performance work system, even if the boom arm supporting the bucket can not rotate the shaft or rotate the shaft, the work radius is limited because the boom boom has a restricted excursion angle around the support boom.

In addition, in the conventional high-performance working system, although a limited number of cylinders, motors and articulating members are constituted to enable the rotation of the boom rods at the best stage, the weight of the boom rods is increased and the joints are uneven, It also has a problem that requires much power.

In addition, when the boom tower of the first stage enables the shaft rotation independently, unlike other boom boats, when the boom tower of the best stage is folded into the standby state for movement, a large space is required for loading, There is a problem that frequent collision with an external device occurs.

The object of the present invention is to solve the above-mentioned problems, and it is an object of the present invention to provide an elevator boom which is capable of axially rotating an extension boom bar extending from a main boom bar, The present invention is to provide a boom rotation device capable of efficiently and steadily completing a work in a dead-end period and capable of reducing the space for loading the extension boom in the inward direction.

According to the present invention, a foundation boom section and an extension boom section directly connected through a first rotation axis; A refraction link which is connected to the tip end of the foundation boom bar via a second rotation shaft and is refracted about a central axis; And a linear link in which one side is connected to the refraction link via a hinge axis and the other side is connected to the extension boom band via a third rotation axis; Wherein the undulating cylinder mounted on the foundation boom block transmits a linear motion to the central axis of the refraction link and the refraction link rotates in accordance with the transmission of the linear motion, And the shafts rotate about the rotation axis.

Preferably, the refraction angle of the refraction link is 70 to 110 degrees.

Preferably, the central axis of the refractory link is pulled toward the relief cylinder by the suction operation of the relief cylinder, thereby bringing the extension boom stand into close contact with the inner side in the downward vertical direction.

Preferably, the central axis of the refraction link is pushed by the projecting motion of the relief cylinder, and the extension boom is rotated from the vertical downward direction to the vertical upward direction outward.

Preferably, the extension boom bar is provided with a coupling plate formed with a first coupling hole and a second coupling hole arranged side by side, the third rotation shaft at the tip end of the foundation boom frame is rotatably coupled to the first coupling hole of the coupling plate, And the second rotation axis on the other side of the linear link is rotatably coupled to the coupling hole.

According to the present invention, there is provided a boom rotating device comprising: a boom rotating device according to any one of the preceding aspects; A swing post portion connected to the foundation boom of the boom rotator to support the upper structure; And a bucket connected to an extension boom of the boom rotator to provide a work space; Wherein the extension boom is rotatable from a vertical downward direction to a vertically upward direction through the boom rotation device to provide various operation positions.

According to the present invention, there is provided a boom rotating device comprising: a boom rotating device according to any one of the preceding aspects; A swing post portion connected to the foundation boom of the boom rotator to support the upper structure; A bucket for connecting to an extension boom of the boom rotator to provide a work space; And moving means for mounting said high-performance working system; And the extension boom is rotatable from a vertical direction to a vertical direction through the boom rotator to provide various working positions.

According to the present invention, an extension boom extending from the main boom can be axially rotated upwards and downwards 180 degrees around the joint portion with the main boom, thereby increasing the work radius of the elevation work, .

In addition, the extension boom can be brought into close contact with the inside when not in operation, thereby reducing the load space.

Brief Description of the Drawings Fig. 1 is a view for explaining a high-altitude work vehicle in which a high-altitude work system according to the present invention is applied to a transportation means.
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]
3 is a view for explaining a link of a boom rotator according to the present invention;
4 is a view for explaining the operation state of the boom rotator according to the present invention;
FIG. 5 is a view for explaining a waiting state and a work state of a complaint operation system according to the present invention; FIG.
6 is a diagram for explaining another example of a complaint handling system according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A boom rotation device according to the present invention will be described in detail with reference to the accompanying drawings.

First, FIG. 1 is a view for explaining a high-performance work vehicle to which a high-performance work system according to the present invention is applied to a transportation means.

Referring to FIG. 1, a high-altitude operation system 200 according to the present invention will be loaded and transported in a transportation means 100. Here, as the transportation means 100, a freely moving vehicle such as a truck may be used, or a special vehicle such as a crane may be used. The transportation means 100 may have a loading box 110 on which the high altitude operation system 200 can be mounted and an outrigger 120 for supporting the equipment vehicle when the high altitude operation system 200 is driven .

The swing work system 200 includes a swing post 210 supporting swinging, stretching and rotation of the upper structure and a main swing arm 220 coupled to the swing post 210 to take a vertical lift to the working position A stretch boom bar 230 coupled to a front end of the main boom bar 220 to extend a length to a working position and an extension boom bar 230 coupled to a front end of the stretch boom bar 230, A pedestal 270 rotatably coupled to a front end of the extension boom frame 260 and a bucket 280 coupled to the pedestal 270 for carrying an operator.

The swing post 210 is installed on a drive table 211 on which a motor or the like is built on the loading box 110 so as to be rotatable in a horizontal direction. A main boom cylinder 212 is provided between the swing post 210 and the main boom bar 220 to control the rotation of the main boom bar 220 by projecting and sucking the piston rod under hydraulic pressure control Respectively. The telescopic boom frame 230 is connected to the front end of the main boom frame 220 and has a plurality of booms sequentially inserted therein so as to adjust its length. At this time, each of the booms constituting the expansion boom unit 230 can be expanded and contracted by a chain connected to each other. The bucket 280 may include a pedestal 270 connected to the bottom of the bucket 280 and the end of the extension boom 260 so that the bucket 280 can be rotated together with the horizontal support. The bucket 280 may be configured as a cage in which a bar-shaped frame is coupled in a lattice form to a worker and various tools for carrying out work.

An extension boom frame 260 connected to the front end of the main boom frame 220 or more precisely to the front end of the expansion boom frame 230 is axially rotated about the front end of the extension boom frame 230, So that it is possible to efficiently and reliably perform a high-altitude operation even in a dead-end period. To this end, a boom rotator 240 is provided at the end of the extension boom bar 230, which is a joining part, and the joining end of the extension boom bar 260.

Here, in the construction in which the extension boom bar 230 is omitted, the extension boom bar 260 is directly coupled to the main boom bar 220, and the boom bar rotation device 240 described later is also provided at the coupling end. That is, the principle of the present invention can be applied to both the existing main boom frame 220 and the new boom frame 230. Hereinafter, the main boom frame 220 and the telescopic boom frame 230 are referred to as base boom frames.

2 is a view for explaining a boom rotator according to the present invention.

A plate type coupling plate 261 is fixedly coupled to the extension boom table 260 at the coupling side with the expansion boom table 230 and two coupling holes 262a and 262b for pin coupling are connected to the coupling plate 261 side by side . At this time, the coupling holes 262a and 262b are preferably formed on the outside of the expansion boom block 230. The first coupling hole 262a formed in the distal end of the extended boom table 260 among the two coupling holes 262a and 262b formed in the coupling plate 261 along the longitudinal direction of the extension boom table 260, The extension boom frame 260 rotates around the first rotation axis 261a by being coupled with the end cover 231 of the expansion boom frame 230 by being coupled with the extension boom frame 261a. Therefore, the extension boom table 260 can rotate about the end cover 231 of the expansion boom table 230.

The boom rotator 240 includes a refracting link 241 rotatably coupled to one end of the end cover 231 of the telescopic boom bar 230 and one end of the refracting link 241, And a linear link 242 whose other end is coupled to the second engaging hole 262b of the engaging plate 261.

Referring to FIG. 3, the refractive links 241 are bent at a central portion and have coupling ends at both ends and a refracted central portion, respectively. The second rotation shaft 241a is coupled to one end of the refraction link 241 so as to be rotatably coupled to the end cover 231 of the expansion boom bar 230 so that the refraction link 241 is rotatably supported by the second rotation shaft 241a Axis rotation about the axis. Accordingly, the refraction link 241 can be rotated about the end cover 231 of the extensible boom bar 230.

The central axis 241b is fastened to the coupling end located at the refracted central portion of the refraction link 241. The piston rod of the relief cylinder 232 installed on the main boom frame 220 is connected to the center shaft 241b and the linear motion of the relief cylinder 232 due to the projecting and sucking operations is transmitted as it is. The refraction link 241 having received the linear motion will rotate about the second rotation axis 241a.

A hinge shaft 241c is coupled to the other coupling end of the refraction link 241 so as to be rotatably coupled to one coupling end of the linear link 242. [ Therefore, the rotational motion of the refracting link 241 will be transmitted to the linear link 242 as it is.

Next, the linear link 242 is linearly formed with reference to FIG. 3, and has coupling ends at both ends. A hinge shaft 241c coupled with the refraction link 241 is coupled to one end of the linear link 242 and is coupled to the refraction link 241. Therefore, the rotational motion of the refracting link 241 will be transmitted to the linear link 242 as it is.

A third rotary shaft 242a is coupled to the other coupling end of the linear link 242 and the third rotary shaft 242a is rotatably coupled to the second coupling hole 262b of the coupling plate 261 . The linear motion initiated in the relief cylinder 232 is converted into a rotary motion through the refraction link 241 and the linear link 242 and is transmitted to the extension boom frame 260 so that the extension boom frame 260 can be rotated .

Here, the refraction angle of the refraction link 241 has a value of about 70 ° to 110 °, preferably about 90 °. And the angle of engagement of the refraction link 241 and the linear link 242 will vary according to the degree of rotation of the extension boom table 260.

FIG. 4 is a view for explaining operation states of the boom rotator according to the present invention.

4A, the center axis 241b of the refraction link 241 is pulled by the suction operation of the relief cylinder 232 as the waiting angle of the extension boom frame 260, (On the side of the transportation means) in the downward vertical direction. In this case, since the normal extension boom table 260 is not folded downward at a vertical angle when the elevation work system 200 is not in operation, the extension boom table 260 can be pulled further, It will be possible to reduce the space for loading.

4 (b), the center axis 241b of the refracting link 241 is pushed by the projecting motion of the relief cylinder 232 as one of the downward working angles of the extension boom frame 260, And the boom frame 260 is rotated downward outward. In this case, the complaint operation system 200 can extend the extension boom frame 260 to the lower space of the high-performance operation system 200, so that the bucket 280 can be moved to the underground space 200 without moving the transportation means 100 to the lower space. So that the work can be advanced.

4C, the central axis 241b of the refracting link 241 is pushed by the protruding operation of the relief cylinder 232 as the rectilinear working angle of the extension boom bar 260, 260 rotate in the outer horizontal direction. In this case, the complaint operation system 200 can extend the extension boom table 260 to a remote space in the high-performance operation system 200, so that even if the transportation means 100 is not moved, Likewise, the bucket 280 can be put into a remote work space to advance the work.

4D, the central axis 241b of the refraction link 241 is pushed by the projecting motion of the relief cylinder 232 as one of the upward working angles of the extension boom frame 260, So that the boom frame 260 rotates upward. In this case, the complaint operation system 200 can extend the extension boom table 260 to the specific upper space of the high-performance operation system 200, so that the bucket 280 can be easily moved to the ground without moving the transportation means 100 to the upper space. It may be possible to push the work into the upper work space such as the space inside the building to advance the work.

4E, the central axis 241b of the refracting link 241 is pushed by the projecting motion of the relief cylinder 232 as the vertical working angle of the extension boom frame 260, 260 rotate vertically upward. In this case, the high-altitude operation system 200 can extend the extension boom table 260 to a high-level space on the high-performance operation system 200 so that the bucket 220 can be extended without driving the main boom table 220 and the extension boom table 230 280 can be put into a work space with a high position to advance the work. Further, in a state in which the main boom frame 220 and the extension boom frame 230 are extended, the bucket 280 can be positioned at a high position without the main boom frame 220 or the extension boom frame 230, which is longer than the length of the extension boom frame 260 So that the work can be carried out.

Meanwhile, FIG. 6 shows a case in which the above-described extension boom stands are connected in two stages.

6, a first extension boom frame 260A is coupled to the front end of the expansion boom frame 230 and a second extension boom frame 260B is coupled to the front end of the first extension boom frame 260A, A flood control system can be constructed to have a wider working range through the boom zone. In this case, as described above, the first boom rotator 240A is provided at the front end of the telescopic boom frame 230 and at the connection end of the first extension boom frame 260A, and the front end of the first extension boom frame 260A and the second extension And the second boom rotator 240B is provided at the joining end of the boom frame 260B. Accordingly, the first extension boom frame 260A can rotate about the distal end of the extension boom frame 230, and the second extension boom frame 260B can rotate around the distal end of the first extension boom frame 260A. You will be able to do it. Here, the first boom rotator 240A and the second boom rotator 240B may be driven together or separately. With such a two-stage extension boom and a boom rotator, the working radius of the high-altitude operation will be 360 degrees in all directions, and it will be able to exert a large operation efficiency in the work in the dead-end section.

As described above, an optimal embodiment has been disclosed in the drawings and specification. Although specific terms have been employed herein, they are used for purposes of illustration only and are not intended to limit the scope of the invention as defined in the claims or the claims. Therefore, those skilled in the art will appreciate that various modifications and equivalent embodiments are possible without departing from the scope of the present invention. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

100: vehicle 110: load
120: Outrigger 200: High-altitude operation system
210: Swing post section 220: Main boom section
230: New extension boom 240: Boom rotator
260: extension boom 270: pedestal
280: Bucket

Claims (3)

Main boom zone;
A stretch boom bar coupled to a front end of the main boom bar for extending a length to a working position;
A cover provided at an end of the telescopic boom bar;
An extension boom block directly connected to the cover through the first rotation shaft;
A refraction link which is connected to a cover at the end of the telescopic boom bar via a second rotation shaft and is refracted about a central axis; And
A linear link having one side connected to the refraction link via a hinge axis and the other side connected to the extended boom band via a third rotation axis; / RTI >
The undulating cylinder installed on the main boom frame transmits a linear motion to the central axis of the refraction link and the refraction link rotates in accordance with the transmission of the linear motion so that the extended boom stands on the extension boom bar about the first rotation axis Axis rotation,
Wherein the extension boom is provided with a coupling plate having first and second coupling holes formed in parallel to each other along the longitudinal direction of the extension boom, and the first rotation shaft at the tip of the expansion boom is rotatably supported in the first coupling hole of the coupling plate And the third rotary shaft on the other side of the linear link is rotatably coupled to the second coupling hole so that the extended boom frame is axially rotated by 180 ° above and below the first rotary shaft at the joining position with the expansion boom bar,
The first coupling hole and the second coupling hole of the coupling plate are formed at extension portions of the coupling plate protruding outwardly of the extension boom, and the coupling plate portion between the first coupling hole and the second coupling hole is recessed,
Wherein the refraction angle of the refraction link is 70 ° to 110 °.
The boom rotator of claim 1;
A swing post connected to the main boom of the boom rotator to support the upper structure; And
A bucket connected to an extension boom of the boom rotator to provide a work space;
, ≪ / RTI >
Wherein the extension boom is rotatable from a vertically downward direction to a vertically upward direction with respect to the telescopic boom base through the boom rotation device to provide various operation positions.
The boom rotator of claim 1;
A swing post connected to the main boom of the boom rotator to support the upper structure;
A bucket for connecting to an extension boom of the boom rotator to provide a work space; And
A transportation means equipped with the high-performance work system; , ≪ / RTI >
Wherein the extension boom is rotatable from a vertical downward direction to a vertically upward direction with respect to the telescopic boom base through the boom rotation device to provide various operation positions.

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